Pioneering English heavy-metal band Black Sabbath will mount a 20-city North American summer tour.

The coast-to-coast concert trek includes an Aug. 28 show at Verizon Wireless Amphitheatre in Irvine. It is the only Southern California date on the tour, which begins July 25 in Houston and concludes Sept. 3 in Los Angeles. The band only performed a handful of reunion shows last year, in large part because guitarist Tony Iommi was undergoing treatment for cancer.

The North American tour comes on the heels of the new Black Sabbath album, "13," which is due out June 11 and is produced by Rick Rubin. This is the first complete album in four decades to feature original Black Sabbath members Ozzy Osbourne, Tony Iommi and Geezer Butler. (Drummer Bill Ward, who did not participate because of a contractual dispute, is replaced on the album by Brad Wilk of Rage Against the Machine. It remains unclear who will be drumming on the tour.)

As of this writing, the Aug. 28 Irvine show is not yet listed on the Verizon Wireless Amphiteatre web site. However, the date was included in a press release issued today by the band's Los Angeles publicist.

Tickets go on sale May 4 at 10 a.m. at all Ticketmaster locations, online at ticketmaster.com and by phone at (800) 745-3000. Ticket prices for the Irvine show have yet to be announced, but tickets for the band's Sept. 3 Los Angeles Sports Arena concert range from $66.50 to $126.50 each, plus service charges.